EPIGENETICS

The complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes.

• Epigenome

• DNA

• genome

• genetic markers

The study of the inherited changes in gene expression that occur without a change in gene sequence and influence how an organism's genes express themselves. Mechanisms are influenced by food and environment. They play an important role in the fetal basis of adult disease susceptibility.

• bionomics

• genomics

• genetics

• epigenetics

Increases gene transcription

• methylation

• DNA acetylation

• repressors

• helicase

Protein molecules around which DNA is tightly coiled in chromatin

• histones

• casein

• nucleosome

• chromosome

A chemical modification of DNA that does not affect the nucleotide sequence of a gene but makes that gene less likely to be expressed.

• activators

• methylation

• acetylation

• proteins

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• The two different cells become mutated

• They actually have different DNA in the two types of cells.

• The proteins expressed in each cell are different

• The genome of the different cells changes

Which of these molecules gets translated?

• DNA

• tRNA

• double-stranded RNA

• mRNA

What is a Gene?

• A segment of DNA that encodes for a protein

• A segment of RNA that encodes for a protein

• Chromosome

• chromatin

What does a promoter do?

• it creates a DNA segment

• controls transcription of gene (on/off)

• it allows a gene to be transcribed

What is an operon?

• a part of a ribsome

• a part of a Rna

• a unit made up of linked genes that code for proteins needed to do a specific task

• needed for DNA replication